This European city has a mosquito factory! These insects are produced for this specific reason – users are astonished.

These mosquitoes are special because they contain bacteria that prevent the spread of the dengue virus. News of this factory is going viral, and people are wondering how mosquitoes can prevent disease.

Just imagine, a factory that produces the very mosquitoes that trouble humans! Yes, this isn't a nightmare; Brazil has actually built one to prevent dengue fever. Thousands of people suffer from diseases like dengue every year, but now Brazil has found a new way. The world's largest mosquito factory has opened in Campinas, in the state of São Paulo, where 19 million mosquitoes are produced every week. These mosquitoes are special because they contain a bacteria that prevents the spread of the dengue virus. News of this factory is going viral, and people are wondering how mosquitoes can prevent disease.

The entire factory is spread over 1300 square meters.

This mosquito factory in Brazil spans 1,300 square meters. Workers work day and night to ensure mosquitoes are fully prepared for breeding. The mosquitoes produced at the factory are Aedes aegypti, the mosquitoes that spread dengue. However, they are infected with a specific bacterium called Wolbachia. This bacterium prevents the dengue virus from multiplying in the mosquitoes' bodies, and when these mosquitoes bite humans, the risk of dengue transmission is eliminated. Most importantly, when these mosquitoes produce new mosquitoes, this bacterium is passed on to their offspring.

Mosquitoes are produced in thousands of trays.

Mosquitoes are produced in factories using thousands of trays. First, larvae form in trays filled with water. Once these larvae have hatched, they are placed in cages where they are fed: a sweet solution for males, and blood (in a bag resembling human skin) for females. The mosquitoes live in the cages for four weeks, breeding, and laying eggs.

Social media users were also surprised.

People watching the video on social media are amazed at how mosquitoes can save humans, and scientists are calling it the world's largest and most unique initiative. Brazil has shown that even the most dreaded disease can be prevented through science and hard work. One user wrote, "Experiments like these are saving the world." Another user wrote, "That's why Europe is progressing so much."